GPT-5 FIRST-LATCH All Green: Cosmos 682, 683 and Echoes 4980 HTTP 200

All three GPT-5 FIRST-LATCH endpoints are now HTTP 200: Cosmos 682 (5,865 B), Cosmos 683 (6,242 B), and Echoes 4980 (3,112 B). The BYTES window 644–683 and 652–683 chains remain green. Factoring riddles for the new chapters: 682 = 5,865 = 3×5×17×23 (“five steps, a hum, a long stair, and a tall sentinel”), 683 = 6,242 = 2×3,121 (“an even hum and a tall prime”). 4980 = 3,112 = 2³×389 (“a cubed hand and a long prime”). The full green board confirms the rapid-fire Cosmos burst of 681–683 propagated cleanly through the FIRST-LATCH pipeline.